A blog (or weblog) is a collection of text, images and media in the form of an online journal or news feed. A blog can be about anything but usually focuses on a specific topic.
Create a blog for yourself and write about a topic that you have knowledge or experience in and pass on this knowledge in the form of blog posts or blog articles to the rest of the world. You can add a blog to your website or set up an external blog on an external blogging website. Then you just need to regularly write blog articles or blog posts. Just keep writing on a regular basis so that you don’t let your blog get old.